IshDeut 143:9 :ܫܡܫܐ ܘܣܗܪܐ܂ ܥܠ ܕܡܫܡܫܝܢ ܘܓܡܪܝܢ ܦܐܪ̈ܐ‏ : the sun and the moon: because they function to bring fruit to completion
See the entire entry for gmr vb. to complete, to fulfill